
import java.util.Scanner;

public class ifelse{
    public static int isLeapYear(int year) {
        if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
            return 1;
        } else {
            return 2;
        }
    }
    public static void main(String []args){
        Scanner sc =new Scanner(System.in);
        System.out.println("输入一个年份");
        int year =sc.nextInt();
        int result=isLeapYear(year);
        if(result==1){
            System.out.println( year +"是闰年");
        }else{
            System.out.println( year +"不是闰年");
        }

    }

    
}
        


